Files
InstaDrums/Source/VuMeter.h
hariel1985 4102c6f69a Multi-output routing (7 stereo buses) + VU meter fix
- 7 stereo output buses: Main, Kick, Snare, HiHat, Toms, Cymbals, Perc
- Each pad pre-assigned to appropriate bus (configurable via outputBus)
- Pads route to assigned bus if active, fallback to Main if not
- Master FX (limiter) applied to Main bus only
- isBusesLayoutSupported: Main must be stereo, aux can be stereo or disabled
- All buses enabled by default for REAPER multi-output detection
- VU meter: switched from RMS to peak measurement (getMagnitude)
- VU meter: sqrt scaling for better visibility on transient material
- VU meter: removed distracting dB scale markers
- VU meter: fast attack / medium release smoothing
- README updated with multi-output routing section

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-23 07:04:11 +01:00

69 sor
2.1 KiB
C++

#pragma once
#include <JuceHeader.h>
class VuMeter : public juce::Component
{
public:
void setLevel (float left, float right)
{
// Update peak hold
if (left > peakL) peakL = left;
else peakL *= 0.995f;
if (right > peakR) peakR = right;
else peakR *= 0.995f;
// Smooth level (fast attack, medium release)
levelL = std::max (left, levelL * 0.85f);
levelR = std::max (right, levelR * 0.85f);
repaint();
}
void paint (juce::Graphics& g) override
{
auto bounds = getLocalBounds().toFloat().reduced (1);
float barGap = 2.0f;
float halfW = (bounds.getWidth() - barGap) / 2.0f;
auto leftBar = bounds.removeFromLeft (halfW);
bounds.removeFromLeft (barGap);
auto rightBar = bounds;
drawBar (g, leftBar, levelL, peakL);
drawBar (g, rightBar, levelR, peakR);
}
private:
float levelL = 0.0f, levelR = 0.0f;
float peakL = 0.0f, peakR = 0.0f;
void drawBar (juce::Graphics& g, juce::Rectangle<float> bar, float level, float peak)
{
// Background
g.setColour (juce::Colour (0xff111122));
g.fillRoundedRectangle (bar, 2.0f);
// Scale level to dB-ish display (boost low levels for visibility)
float displayLevel = std::pow (juce::jlimit (0.0f, 1.0f, level), 0.5f);
float h = bar.getHeight() * displayLevel;
auto filled = bar.withTop (bar.getBottom() - h);
// Segmented colour
if (displayLevel < 0.6f)
g.setColour (juce::Colour (0xff00cc44));
else if (displayLevel < 0.85f)
g.setColour (juce::Colour (0xffcccc00));
else
g.setColour (juce::Colour (0xffff3333));
g.fillRoundedRectangle (filled, 2.0f);
// Peak hold line
float displayPeak = std::pow (juce::jlimit (0.0f, 1.0f, peak), 0.5f);
if (displayPeak > 0.01f)
{
float peakY = bar.getBottom() - bar.getHeight() * displayPeak;
g.setColour (juce::Colours::white.withAlpha (0.8f));
g.fillRect (bar.getX(), peakY, bar.getWidth(), 1.5f);
}
}
};